Product Description:

The CSH01.1C-S3-EN2-EN1-NNN-S1-S-NN-FW is a single-axis control section delivered by Bosch Rexroth Indramat for the CSH Advanced Controllers series. The unit plugs into IndraDrive power sections and issues motion commands to servo inverters within modular plant machinery. By combining feedback processing, fieldbus links, and integrated safety inputs, it coordinates axis movement in real-time industrial automation. It acts as the central logic layer between higher-level PLCs and the drive, translating network telegrams into torque, speed, or position setpoints.

During operation, the control section draws a base current of 4 A when the DC bus is energized, and the associated inrush is tolerated for up to 100 ms before protection circuits trip. Steady electronic demand stays at 7.5 W, so cabinet thermal load remains low. Command data travels over SERCOS III, which provides deterministic telegrams for tight motion loops. Encoder Channel 1 supplies high-speed feedback; its HSF rail sources 8 V at 250 mA and drives resolver carriers at 4 kHz, while the resolver winding receives 18.2 Vpp differential excitation. The section also supports EnDat 2.1, 1 Vpp sinusoidal, or 5 V TTL incremental formats on Interface 1, enabling mixed encoder fleets.

For secondary feedback and auxiliary devices, Channel 2 delivers 350 mA on a 5.0 V logic rail and supports cable runs to 75 m with sense lines to maintain voltage accuracy. Its hardware accepts resolver or HSF signals, mirroring the first channel’s sampling latency for multi-axis alignment. Integrated Safety Technology I/O gates the drive enable path, while the onboard relay is rated at 30 VDC / 1 A for safe power-off interlocks. Diagnostics and service access are available through the RS-232 service port running up to 115 kBaud. This layout allows the control section to handle feedback, communication, and safety functions within the drive assembly.